VoIP实现即时通话通知

PKPushRegistry * voipRegistry = [[PKPushRegistry alloc]initWithQueue:dispatch_get_main_queue()];
    voipRegistry.delegate = self;
    voipRegistry.desiredPushTypes = [NSSet setWithObject:PKPushTypeVoIP];

- (void)pushRegistry:(PKPushRegistry *)registry didUpdatePushCredentials:(PKPushCredentials *)credentials forType:(NSString *)type{
    NSString *str = [NSString stringWithFormat:@"%@",credentials.token];
    NSString * tokenStr = [[[str stringByReplacingOccurrencesOfString:@"<" withString:@""]
                            stringByReplacingOccurrencesOfString:@">" withString:@""] stringByReplacingOccurrencesOfString:@" " withString:@""];
    NSLog(@"TOKEN = %@",tokenStr);
}

- (void)pushRegistry:(PKPushRegistry *)registry didReceiveIncomingPushWithPayload:(PKPushPayload *)payload forType:(NSString *)type {
    NSDictionary *dic = [payload.dictionaryPayload objectForKey:@"aps"];
    NSLog(@"******************* push Kit %@***********************",dic);
}

1、将之前生成的voip.cer SSL证书双击导入钥匙串
2、打开钥匙串访问，在证书中找到对应voip.cer生成的证书，右键导出并选择.p12格式,这里我们命名为voippush.p12,这里导出需要输入密码(随意输入，别忘记了)。
3、目前我们有两个文件，voip.cer SSL证书和voippush.p12私钥，新建文件夹命名为VoIP、并保存两个文件到VoIP文件夹。
4、把.cer的SSL证书转换为.pem文件，打开终端命令行cd到VoIP文件夹、执行以下命令
openssl x509 -in voip.cer  -inform der -out VoiPCert.pem
5、把.p12私钥转换成.pem文件，执行以下命令（这里需要输入之前导出设置的密码）
openssl pkcs12 -nocerts -out VoIPKey.pem -in voippush.p12
6、再把生成的两个.pem整合到一个.pem文件中
cat VoiPCert.pem VoIPKey.pem > ck.pem
最终生成的ck.pem文件一般就是服务器用来推送的。

<?php
    // Put your device token here (without spaces):填写App启动时获取的token
    $deviceToken = '9e5ea4c9956e7551cbb2f3de963006609c9d9c21ec09e2b4e07b0b80fda03c20';
    // 导出.p12密钥时填写的密码
    $passphrase = '123456';
    // Put your alert message here: 填写推送内容
    $message = 'MICHOI_M_CLOUDTALK_';
    ////////////////////////////////////////////////////////////////////////////////
    $ctx = stream_context_create();
    stream_context_set_option($ctx, 'ssl', 'local_cert', 'ck.pem');
    stream_context_set_option($ctx, 'ssl', 'passphrase', $passphrase);
    stream_context_set_option($ctx, 'ssl', 'verify_peer', false);
    // Open a connection to the APNS server 推送环境，分开发环境和生产环境
    // 开发环境地址：gateway.sandbox.push.apple.com:2195
    // 生产环境地址：gateway.push.apple.com:2195
    $fp = stream_socket_client('ssl://gateway.sandbox.push.apple.com:2195', $err,$errstr, 60, STREAM_CLIENT_CONNECT|STREAM_CLIENT_PERSISTENT, $ctx);
    if (!$fp)
    exit("Failed to connect: $err $errstr" . PHP_EOL);
    echo 'Connected to APNS' . PHP_EOL;
    // Create the payload body
    $body['aps'] = array(
                         'content-available' => '1',
                         'alert' => $message,
                         'sound' => 'voip_call.caf',
                         'badge' => 10,
                         );
    // Encode the payload as JSON
    $payload = json_encode($body);
    // Build the binary notification
    $msg = chr(0) . pack('n', 32) . pack('H*', $deviceToken) . pack('n', strlen($payload)) . $payload;
    // Send it to the server
    $result = fwrite($fp, $msg, strlen($msg));
    if (!$result)
    echo 'Message not delivered' . PHP_EOL;
    else
    echo 'Message successfully delivered' . PHP_EOL;
    // Close the connection to the server
    fclose($fp);
?>